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我省杂交玉米制种主要集中在川中、川北丘陵地区,土层瘠薄,春、夏旱频繁交错,十年九灾,玉米制种产量受气候因素制约很大,制种单产长期低而不稳。每年均需要从北方调进上千万公斤以上种子满足生产所需。近几年来,省农科院与种子部门密切协作,
Hybrid corn production in our province mainly in central Sichuan, northern Sichuan hilly areas, infertile soil, frequent spring and summer drought staggered, nine outbreaks of 10 years, corn production is constrained by climate factors, the long-term low and unstable seed production . Each year need to transfer tens of millions of kilograms of seeds from the north to meet the production needs. In recent years, the Provincial Academy of Agricultural Sciences and the seed sector in close collaboration,